Author: skateTime: 2012/07/16
I accidentally found an article written for troubleshooting and recorded it for search.
Fault Analysis on Cascade restart of RAC cluster nodes
Environment:OS: LinuxDB: rac10g + ocfs2
The RAC database environment actually contains two clusters: clusterware cluster and instance cluster. They generally work in the following ways:
1. if clusterware first discovers a cluster fault, it will reorganize the cluster directly,
Public class Selfcard {2 Private int ID; 3 Private int StudentID; 4 Private String Note; 5 }Now the need is to find out the student information (including the student ID information) according to the ID. I still remember how to deal with this situation in the school, first, according to the ID of the student table in the basic information, and then according to StudentID in the Selfcard student ID card of the student information, will be found in the student card information assign
Use of the KendoDropDownList control in KendoUi-Implementation of the level-3 cascade Module,
1. Application Requirements
In addition to the above data table relationship design in permission system development, it is troublesome to display the cascade module on the page. In the design, it is up to three levels of control, therefore, page operations such as presentation and editing of level-3
First, only the InnoDB Engine allows the use of foreign keys in MySQL versions available in the product environment (4.0.x and 4.1.x). Therefore, our data tables must use the InnoDB engine.
Next, we will first create the following database tables for testing:
Create table 'roottb '('Id' INT (11) UNSIGNED AUTO_INCREMENT not null,'Data' VARCHAR (100) not null default '',Primary key ('id ')) TYPE = InnoDB;
Create table 'subtb '('Id' INT (11) UNSIGNED AUTO_INCREMENT not null,'Rootid' INT (11) unsign
field:
mysql> ALTER TABLE table_name DROP field_name;
Cascade update and delete (red, Case Insensitive)
DROP TABLE IF EXISTS `mail_model`;create table mail_model(id varchar(50) primary key not null ,mail_filename varchar(200),content varchar(2000))ENGINE=InnoDB DEFAULT CHARSET=gbk;
DROP TABLE IF EXISTS `mail_model_extend`;create table mail_model_extend(id int(6) auto_increment not null primary key,rid varchar(50) not null,content varchar(2000),INDEX
; commit;
Commit complete.
SQL> insert into T1 values (1,1000 );
1 row created.
SQL> insert into T1 values (2,1500 );
1 row created.
SQL> commit;
SQL> insert into T1 values (3,200 );Insert into T1 values (3,200)*Error at line 1:ORA-02291: Integrity Constraint (SYS. t_fk) violated-parent key not found
(Because the constraint is reversed, there is no such employee in the employee basic data table. Why is this employee sold .)
SQL> drop table t;Drop table t*Error at line 1:ORA-0244
Document directory
Current problems
Solution
It has been a few days since I started to explore DVWP. These topics are all centered on the build cascade drop-down box-that is, when you select a drop-down box, the following drop-down box is limited to the options.
The preceding Country/State is used as an example. When Country = USA is selected, only 50 United States and District of Columbia should be listed in States; When Country = Canada is sel
This article describes how to implement a three-level cascade drop-down box in php. I have searched for many information about the three-level cascade drop-down box on the Internet, I will share with you the following information about the three-level cascade drop-down box for php implementation I found online. I will share with you the details below.
Index. php
This article describes how to implement a three-level cascade drop-down box in php. I have searched for many information about the three-level cascade drop-down box on the Internet, I will share with you the following information about the three-level cascade drop-down box for php implementation I found online. I will share with you the details below.
Index. php
This article mainly introduces jQuery + PHP + MySQL to achieve the infinite cascade effect of relevant information, has a certain reference value, interested friends can refer to this article for a simple implementation of jQuery infinite cascade effect, the content is as follows:
:
Drop-down box only
Level prompt + drop-down box
Storage Data click response
It consists of three files: index.html (hom
(1) Adding a reference to one party (such as Group) in the many party (such as user) adds "private group group;" In the user class, and generates Geter and Seter.(2) Add annotations on Geter @manytoone, @JoinColumn (name= "GroupId") where groupId represents the foreign key name of the generated table.(3) Writing test procedures1) Get configuration, generate Schemaexport, set up table in database (if existing, delete immediately)2) Create a new group object and multiple user objects, and set the
This article describes how to implement a three-level cascade drop-down box in php. I have searched for many information about the three-level cascade drop-down box on the Internet, I will share with you the following information about the three-level cascade drop-down box for php implementation I found online. I will share with you the details below.
Index. php
1. Application RequirementsIn the rights system development in addition to the above data table relationship design, the more troublesome place is the Cascade module in the page display, because the design is the most control to three levels, so the three-level cascade module display, editing and other page operation is a need to solve the problem, where the use of Kendoui kendodropdownlist to achieve, it
STM32F103ZET6 output a specific number of PWM with timer cascadeStm32f103zet6 in a total of 8 timers, including advanced Timers TIM1-TIM5, TIM8, a total of 6.There is a need to use the CASCADE function of the timer, the ST's RM0008 REV12 P388 and P399 page is explained for the specific timer, how to choose the Cascade function, see table 86.Here I output PWM timer is TIM2, idle timer is TIM3. With TIM2 as t
CSS selector and Its Inheritance and cascade features1. Basic SelectorMark ID class.
2. Compound SelectorIntersectionThe intersection selector is composed of two directly connected selectors. The result is the intersection of the selected element ranges.The first must be a tag selector, and the second must be a category selector or ID selector, which must be continuously written.For example, Div. Class
UnionThe result of the Union selector is t
1. Phenomenon:
The code is as follows
Copy Code
sql> drop user test cascade;Drop USER Test Cascade*ERROR at line 1:Ora-00604:error occurred at recursive SQL level 1Ora-00069:cannot acquire lock--table locks disabled for T1Sql> Conn Test/testConnected.Sql>Sql>sql> desc T1Name Null? Type----------------------------------------- -------- ----------------------------A DATESql>Sql>sq
JS Select Cascade, above category, below is the content.
The JS cascade effect is as follows:Category:Please selectFruitVegetablesOthercontent:The HTML and JS code are as follows:JS Select Cascade, above category, below is the content
Hibernate cascade Storage
Today, I encountered a problem for half a day. Make a record
The cascade relationship is set for hibernate cascade saving, but the primary table is always inserted and updated from the table when it is added. The following error message is displayed:
Batch update returned unexpected row count from update [0]; actual row count: 0; expe
A few days ago, a switch cascade using a Cisco 2950 switch and a 100MB port of Tp-link 24 ports. Causes the Cascade ports on the Cisco 2950 device to be in use one day later, the next morning when the port shows err-disabled. The network is not working. How to deal with?To view the interface status:GX-SW-2950-01#SH Interfaces F0/2FASTETHERNET0/2 is off, line protocol was down (err-disabled)Hardware is Fast
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